Lamp-socket and the like.



C. l. KLEIN.

LAMP SOCKET AND THE LIKE.

' APPLICATION FILED OCT 28 1913 I 1 15@ %3 Patented Aug. 17, 1915.

the like,

1 the insulating annular flat with CHARLES J. KLEIN, F MILWAUKEE, WISCONSIN, ASSIGNOR TO GUTLER-HAMBIER LAMP-SOCKET AND TIE-IE LIKE.

Application filed October 28, 1913.

T all whom it may concern Be it known that I, CHAnLas J. KLEIN, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful I -provements inLamp-Sockets and of which the following is a full, clear, concise, and exact description, reier ence being had to the accompanying drawing, forming a part or" this specification.

This invention relates to incandescent lamp sockets, pendent switches and the like.

One of the objects of the invention is to provide an improved insulating base for the current carrying parts of a switch mechanism or similar device which is adapted to co-act with the two parts of an inclosing casing to lock the same against relative rotation.

Certain further objects will be pointed out hereinafter.

In order to fully and clearlydisclose the invention I have illustrated two of theta rious possible modifications thereof in the accompanying drawing.

Figure l is a side view of the cap partially in section; Fig. 2 is a bottom View of the same with a portion of the flange broken away; Fig. 3 is a side view of the shell showing a section or" one locking lug; F 4 is an elevation at right angles to Fig. 3; Fig. 5 is a side view of the insulating base; Fig. 6 is a top view of the same; Fig. 7 is a side view of a modified form of cap partially in section; Fig. 8 is a bottom View of the same, with a portion of the flange broken away; and, Fig. 9 is a. top View or" base for use with the modified cap of Figs-7 and 8.

In the preferred form of device shown in Figs. 1 to 6, the cap 1 has an enlarged rim. 2 merging into the cap body at the shoulder 3. Within the rim 2 is an annular strip & having a right angled flange 5 at its upper edge with depending tongues or lugs 6. The flange 5 lies adjacent the shoulder 3 of the cap and the strip 4 is clampedin place by inturning the edge of the cap toform an ledge 7.

The shell 8 is provided on opposite sides with slots 9 adapted to accommodate the reciprocating push bar or other operating member of an inclosed switch mechanism. The upper edge of the shell at the sides of the slots 9 is inturned slightly, as at 10,

Specification of Letters Patent.

and bottled abrupt lower shoulders and inclined upper edges.

The insula=' carries the switch mechanism a 1 car ung parts of the socket a d tea to D6 housed within the casir l his base 7 comprises a lower section 14 having terminals 15 on opposite sides thereof. an upper section 16. These two sections re secured together by suitable such the usual screws 17. The oer section i of the base is substantially provided with recessed oonosite sides disposed above or the reception of line e r The upper end 1d to form a ciridapted to rest upon shch 8 when placed ocating push bar of .nism

\. nds through the Rectangular projecthe basedirectly d below the flange and t e ends of the .1 ited to fit within W hen in this posioners 13 of the shell the sides of the base projections 21 hold the base and its associated parts against turnin within the shell. The upper face of the insulating base ove the j it). These operating i the slots 9 0 tion the int edge extend is provided around its edge with a series of rectangular reesscs 22 adapted to receive the depending lugs 3 in the cap.

ll hen the insulating" base 13 is inserted in the shell 8, th two members may e telescopically pushed into engagement with the cap The catches 12 on the shell thereupon co-act with the flat surface of the marginal ledge 7 of the to lock the cap and shell. against axial se aration. At the same time the fixed lugs 3 in the cap will co-act with the sides of the recesses in the upper face of the insulating base to lock the cap and base against relative rotary movement. The base 13 thus loci-z the two parts of the casing against relati *a rotation. .Vhen the parts of the are united, also, the

flange 19 around the insulating base fits ration when united" in any rotary relation snugly between the edge of the shell 8 and and having independent internal shoulders, the shoulder 30f the cap to prevent further and a base entirely wit ,in' said casing havtelescopic attachment and to insure a rigid ing a plurality of spaced shoulders co-acting 5 connection between the parts. l

Separation of the cap and shell is readily when the latter are united in any one of as obtained by compressing the shell beneath plurality of rotary positions to lock said the catches 12 to disengage the latter from base and said casing parts against relative the capflange 7 It is to be noted that the rotation. v I shell and cap may be attached in any one 4. lncombination, a. cap and shell adapt- 75 of a plurality of rotary positions since the ed to telescopically unite, interiorly prolugs 6 of thecap will co-act with any of the jecting lugs within said cap, a base'within recesses 22 of thebase. i I said shell having shoulders adapted to co- The modified structure shown in Figs. 7 act with said lugs in said cap to lock said operation ,to that already described. The ing member within said cap for supporting cap I is provided with an enlarged rim 2 an insulating lining therein, said retaining andfiange 7 Within the rim is an annular m mber being supported in said cap by said strip 23 having a plurality of lugs 24: formed lugs. parallel transverse slits. The insulating turned marginal portion, an annular membase 25 is substantially identical with the her secured within said cap above said inbase 13 of the preferred form, but in thl turned portion, and a plurality of lugs on modification the upper face has a series of said member; a shell having outwardly ex- '25 curv d recessesfifi ad p d to receive h tending shoulders to engage said inturned' 9.0' curved lugs 24 of the cap. The shell deportion of said cap to lock said cap and shell sign d f rhi modlfied p and against axial separation, and 'interiorly exs ating base 25 is the Same as a Shown in tending shoulders; and a base inclosedwithj- Fi s. 3 and 4. 1 in said cap and shell having a plurality of n the,ca p 1 Flgs. and I h ve also shoulders, certain of which co-act with said 95 Shown a 'f g P g. 27 releasably lugs in said cap and certain of which co-act holding the nsulating hmngm pla with said interiorly extending shoulders on v h p i g 18 substantlally .slmllal to said shell to lock said cap and shell against that described and claimed 1n my co-pend' l ti t ti M v ing application, filed Apnl 8, 1912, Seria 6. In a lamp socket or similar device, in 1 N0. 689,289 011 Wl'llCll Patent N0. 1,121 374 combination a, cgxr and hell adapted to issued to me Q 4- B y telescopically unite and having interengagd ibed, thespr'ing 27 comprises a p0r ing catches to lock the same against sepa Q lying ad acent the perlphery 0f h ration, said caphaving i nteriorly projectmg 40 cap and clamped in place between the lugs h g d id h ll h i g i tm-n d p rti 10: 24 d the Shoulder 3 011 the p ihefefibQVe forming radial shoulders, and an insulatand portions 28 extending transversely of mg base within said shell having projecthe cap. The portions 28 are resilient and tions adapted to co-act with said lugs and yieldable toward the Wall Of the ap P 1- said shoulders to lock said cap and shell mit the insulating lining to be inserted orv against rotary movement. I 11 removed. 7. In a lamp socket or similar device, in What I claim as new and desire to securecombination, a cap having a flanged rim and by Letters Patent is: an annular strip within said rim, said strip 1. In. combination, a two-part casing for having a plurality of projecting lugs, a electrical'de'vices,-the parts thereof having resilient shell having'a key slot and a secll independent shoulders, and an insulating 0nd slot spaced therefrom,said shell beip; base within said casing having integral turned inwardly at the side of one of sai shoulders co-acting with said shoulders on slots to form shoulders, and a base having said casing parts to lock said base and said shoulders to co-act with the shoulders of casing parts against relative rotation. said shell and the lugs of said strip to lock 1 '2. In combination, a two-part casing, the said cap and shell against relative rotation. parts thereof being provided with interiorly 8. In a lamp socket or similar device, in projecting shoulders and a base therein havcombination, a cap having an annular shouling shoulders co-acting with said shoulders der spaced from its margin and interiorly on said casing parts to look all of said parts extending lugs, a shell adapted to fit with- 1 in any ne of a plurality of rotary positions in the margin of said cap and having inagainst relative rotation. teriorly ex ending shoulders, and an insulate 3. In combination, a two-part casing for ing base having a, flange adjacent one end electrical devices, the parts thereof having and a plurality v of shoulders, said flange means interlocking to prevent relative sepabeing adapted to engage the edge of said with said shoulders on said casing parts f 15 to 9 inclusive is similar in-general plan and cap against relative rotation, and a retain- 2 0 by pressing inwardly-the metal between two- 5. in combination, a cap having an in? shell and the shoulder of said cap, and said shoulders on said base co-acting With the lugs of said cap and the shoulders of said shell to lock said cap and shell against relative rotation.

9. In combination, insulating base with a switch mechanism thereon having a projecting operating -member, a sectional metallic casing to inclose and support said base, the sections of said casing telescoping together and automatically interlocking against separation in substantially any rotary relation, and sai l ase and said casing sections having means independent of said switch operating member for locking each thereof against rotation relative to the others.

10. In combinar an insulating base carrying a switch it. hanism having a reciprccable operaticsember, a sectional casing to inclose and support said base and having opposite recesses in its Walls to accommodate said switch operating member, the sections of said casing telescoping together and having means automatically interlocking in substantially any telescoped rotary relation to restrain the parts against separation, and said base and said casing sections having means independent of said first mentioned means and of said switch operating member for locking each thereof against rotation relative to the others.

In Witness whereof, I have hereunto subscribed my name in the presence of two Witnesses.

CHARLES J, KLEIN.

Witnesses:

LnoNAnn F. WATSON, F. H. HUBBARD. 

